- 14 Mar 2002
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The natural phenomenon called "Omiwatari" (御神渡り), where ice on Lake Suwa in Nagano Prefecture cracks and rises to form a ridge resembling a mountain range, has failed to appear for the seventh consecutive winter, with climate change suspected as a contributing factor. Historical records dating back to the Muromachi period (1336–1573) show a sharp increase in "ake no umi" (明けの海) winters—years without the phenomenon—since 1951. Kiyoshi Miyasaka, the 74-year-old chief priest of Yatsurugi Shrine in Suwa, noted, "Climate change and global warming are becoming increasingly apparent on the lake."
Photo credit: Hokuriku Shinkansen
Photo credit: Nagano Prefecture
mainichi.jp
news.climate.columbia.edu
諏訪湖の御神渡り(おみわたり)
Photo credit: Hokuriku Shinkansen
Photo credit: Nagano Prefecture
Legend has it that Omiwatari is the route Takeminakata, the male god of the Suwa Taisha shrine complex's Kamisha Shrine in Suwa, used to visit the goddess Yasakatome of its Shimosha Shrine in the neighbouring town of Shimosuwa. For that reason, it is also called the "path of love of the gods." According to Miyasaka, the Omiwatari was first recorded in 1397. It was written about in documents passed down by the Moriya cla,n which once headed Suwa Taisha's Kamisha Shrine. This was the 583rd year its presence or lack thereof has been recorded, after it was once discontinued, but has been kept up annually since 1443, in the mid-Muromachi period. Including five years for which records are lost, "ake no umi" has occurred 81 times, including 40 times in the 75 years since 1951, inclusively. The rate has picked up particularly since 2000, with 18 years since lacking the Omiwatari phenomenon. It has not yet been seen since Japan entered the Reiwa era in 2019. Worried, Miyasaka commented, "The views of Lake Suwa that have been around for a long time are disappearing. The time may soon arrive when the 'Omiwatari' will become a legend as an event of the past."
Global warming blamed for 7-year absence of 'gods' path' winter ice ridge on Japan lake - The Mainichi
SUWA, Nagano -- A natural phenomenon called
The Omiwatari Religious Ritual: Climate Change and Intangible Loss
Climate change is altering a centuries-old Shinto ritual in Japan, highlighting the importance of addressing the less visible signs of a changing planet.
諏訪湖の御神渡り(おみわたり)